US 12,146,067 B2
Coating resin composition for flexible cover window and flexible cover window using same
Kukhyun Sunwoo, Gyeonggi-do (KR); Hak Chul Kim, Chungcheongnam-do (KR); Tea Joo Ha, Chungcheongnam-do (KR); Jae Suk Oh, Gyeonggi-do (KR); and Jung Cheol Noh, Jeollabuk-do (KR)
Assigned to UTI INC., Chungcheongnam-do (KR)
Filed by UTI INC., Chungcheongnam-do (KR)
Filed on Dec. 17, 2021, as Appl. No. 17/554,432.
Claims priority of application No. 10-2020-0179703 (KR), filed on Dec. 21, 2020.
Prior Publication US 2022/0195235 A1, Jun. 23, 2022
Int. Cl. C09D 151/08 (2006.01)
CPC C09D 151/08 (2013.01) 12 Claims
OG exemplary drawing
 
1. A flexible cover window having a resin layer made of a coating resin composition and formed on one or both surfaces thereof,
the coating resin composition comprising:
10 to 150 parts by weight of a urethane (meth) acrylate-based oligomer prepared by synthesizing an acrylic monomer comprising a hydroxyl group with a urethane prepolymer synthesized from an ether-based polyol, diisocyanate, and polyoxyalkylene-based bisphenol ether;
1 to 60 parts by weight of a first photocurable acrylate-based monomer;
0.5 to 10 parts by weight of a second photocurable acrylate-based monomer;
0.5 to 10 parts by weight of an alkoxy silane coupling agent;
0.1 to 5 parts by weight of a siloxane additive; and
1 to 20 parts by weight of a photopolymerization initiator; and
the flexible cover window comprising:
a plane part formed to correspond to a flat area of the flexible display; and
a folding part formed to correspond to a folding area of the flexible display, connected to the plane part, and being thinner than the plane part.